Abstract: Beneficiation experiments were conducted on a hematite ore with 38.10% Fe by SLon-100 Cycle Type Pulsating High Gradient Magnetic Separator based on "unit medium" analysis method so as to objectively，comprehensively and accurately understand both the combined rod medium of various diameters and the rod medium of single diameter affecting high gradient magnetic separation.The results indicated that 3+2 mm combined rod medium (upper eight layers withΦ3 mm rod medium,under eight layers withΦ2 mm rod medium) can recover the coarse magnetic particles，and also the fine particles.It can get well recovery index for the whole particles.With the same type of rod matrix，there will a large different separation performance for various arrangements.Thus，the optimum arrangement should be determined by experiments.

Key words: Pulsating high gradient magnetic separation, Combinative rod matrix, Arrangement and combination optimization, Hematite ore